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ac/llvm/gfx6: move mrtz writemask workaround to ac_build_export

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Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38853>
This commit is contained in:
Georg Lehmann 2025-12-09 14:12:17 +01:00 • committed by Marge Bot
parent 072815e5cb
commit 6a7ff2204b
1 changed files with 11 additions and 8 deletions
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19
src/amd/llvm/ac_llvm_build.c
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@ -1466,8 +1466,18 @@ void ac_build_export(struct ac_llvm_context *ctx, struct ac_export_args *a)
{
LLVMValueRef args[9];
/* GFX6 (except OLAND and HAINAN) has a bug that it only looks at the
* X writemask component.
*/
unsigned enabled_channels = a->enabled_channels;
if (ctx->gfx_level == GFX6 && ctx->info->family != CHIP_OLAND &&
ctx->info->family != CHIP_HAINAN && enabled_channels &&
a->target <= V_008DFC_SQ_EXP_MRTZ) {
enabled_channels |= 1;
}
args[0] = LLVMConstInt(ctx->i32, a->target, 0);
args[1] = LLVMConstInt(ctx->i32, a->enabled_channels, 0);
args[1] = LLVMConstInt(ctx->i32, enabled_channels, 0);
if (a->compr) {
assert(ctx->gfx_level < GFX11);
@ -3553,13 +3563,6 @@ void ac_export_mrt_z(struct ac_llvm_context *ctx, LLVMValueRef depth, LLVMValueR
}
}
/* GFX6 (except OLAND and HAINAN) has a bug that it only looks
* at the X writemask component. */
if (ctx->gfx_level == GFX6 &&
ctx->info->family != CHIP_OLAND &&
ctx->info->family != CHIP_HAINAN)
mask |= 0x1;
/* Specify which components to enable */
args->enabled_channels = mask;
}